Re: Cygwin-cross patch#2 for 2.96.4-1

Jan Nieuwenhuizen writes:
> Olaf Weber writes:

>> The info pages for ld (version 2.14.90.0.7-multiarch) say that Cygwin
>> should be perfectly happy with dllexport.  (It does make clear that if
>> dllexport is used anywhere, it must be used for all exported symbols.)

> Yes, and there's another issue with variables, IIRC.

>> So I'm curious what kind of failiure you're encountering.

> It's a failure of the libtoolish linking kind, and easy to check.
> Apply my patch, reverert the KPSEDLL bits, get cyg-apt

>     http://lilypond.org/cygwin/cyg-apt

> and install a cygwin-cross compilation suite using dpkg-cross.  Hmm
> that may be hairy if you're not using Debian?  Hold on...

After a (very cursory) glance it already appears to be a bit hairier
than you make out above.


> Without my patch (new version attached) the Cygwin compile fails like
> this:

> /bin/sh ../libtool --mode=link i686-cygwin-gcc -o kpsewhich -lm  kpsewhich.o  -L../kpathsea -lkpathsea -L/cygwin/usr/X11R6/lib -lICE -lSM -lXpm -lX11
> generating import library for `cygkpathsea-4.dll'
> i686-cygwin-dlltool --as=i686-cygwin-as --dllname cygkpathsea-4.dll --def .libs/cygkpathsea-4.dll-def --output-lib .libs/libimp-cygkpathsea-4.a
> i686-cygwin-gcc -o .libs/kpsewhich kpsewhich.o  -L/netrel/build/tetex-bin-2.96.4-1/texk/kpathsea .libs/libimp-cygkpathsea-4.a -L/cygwin/usr/X11R6/lib -lICE -lSM -lXpm -lX11
> kpsewhich.o(.text+0x19c): In function `find_format':
> /netrel/src/tetex-bin-2.96.4-1/texk/kpathsea/kpsewhich.c:127: variable 'kpse_format_info' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.

Why is it trying to auto-import this one at all?  It should properly
marked for dllexport/dllimport already.  Could you verify that this is
done in the preprocessed output of kpsewhich.c ?

Perhaps an explicit --disable-auto-import has to be supplied?

-- 
Olaf Weber

               (This space left blank for technical reasons.)